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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>連云港孔板流量計(jì)銷售價格,流量計(jì)</p><p><span>***更新：</span>2020-09-01 11:16:20</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="yifhe2f" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇中徽測控儀表有限公司</a></p><p><span>聯(lián)系人：</span>姜經(jīng)理</p><p><span>郵箱: </span>jszhck@163.com</p><p><span>電話: </span>13770424300</p><p><span>傳真: </span>0517_86903470</p><p><span>網(wǎng)址: </span>http://www.jszhckyb.com</p><p><span>手機(jī): </span>0517-86900078</p><p><span>地址: </span>江蘇省淮安市金湖縣工業(yè)集中區(qū)A區(qū)3號</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="zjbyamt" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="cwtgxel" class="box"><p><p> 渦街流量計(jì)(USF)特點(diǎn) </p> <p> （1）抗振性能差。外來振動會使渦街流量計(jì)產(chǎn)生測量誤差，甚至不能正常工作。通道流體高流速沖擊會使渦街發(fā)生體的懸臂產(chǎn)生附加振動，連云港孔板流量計(jì)銷售價格，使測量精度降低。大管徑影響更為明顯。 </p> <p> （2）對測量臟污介質(zhì)適應(yīng)性差。渦街流量計(jì)的發(fā)生體極易被介質(zhì)臟污或被污物纏繞，連云港孔板流量計(jì)銷售價格，改變幾何體尺寸，連云港孔板流量計(jì)銷售價格，對測量精度造成極大影響。 </p> <p> <span style="font-size:12px;">（3）直管段要求高。**指出，渦街流量計(jì)直管段一定要保證前 40D 后 **，才能滿足測量要求。</span> </p> <p> <span style="font-size:12px;">（4）耐溫性能差。渦街流量計(jì)一般只能測量 300℃以下介質(zhì)的流體流量。</span> 電磁流量計(jì)的測量原理不依賴流量的特性，如果管路內(nèi)有一定的湍流與漩渦產(chǎn)生在非測量區(qū)內(nèi)則與測量無關(guān)。連云港孔板流量計(jì)銷售價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="連云港孔板流量計(jì)銷售價格,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837362656250/2008561.png"></div><p> 孔板流量計(jì)安裝對管道的要求： </p> <p> 1．孔板流量計(jì)安裝時應(yīng)配有一段測量管,至少保持**DN、后5DN的等徑直管段，以提高測量精度。 </p> <p> 2．在孔板流量計(jì)前后若需安裝閥門，比較好選閘閥且在運(yùn)行中全開；調(diào)節(jié)閥則應(yīng)在下游5DN之后的管路中。 </p> <p> 3．引壓管路的內(nèi)徑與管路長度和介質(zhì)臟污程度有關(guān)，通常在45米以內(nèi)用內(nèi)徑為8-12mm的管子。 </p> <p> 4．測量液體流量時引壓管水平段應(yīng)在同一水平面內(nèi)。若是在垂直管道上安裝節(jié)流件，引壓短管之間相距一定的距離（垂線方向），這對差壓變送器的零點(diǎn)有影響，應(yīng)通過“零點(diǎn)遷移”來校正。 </p> <p> 5．引壓管路應(yīng)有牢固的支架托承，兩根取壓管路應(yīng)盡可能互相靠近并遠(yuǎn)離熱源或震動源，測量水蒸汽流量時，應(yīng)用保溫材料一同包扎，必須時（如氣溫0℃以下）加伴熱管防止結(jié)冰。在測量臟污流量時，應(yīng)附設(shè)隔離器或沉降器。 </p> <p> 6．引壓管路內(nèi)必須始終保持單相流體狀態(tài)。被測流體是氣體時，引壓管路（包括差壓計(jì)的壓力腔）內(nèi)全部是氣相；被測流體是液體時，引壓管路內(nèi)全部是液相，不能有氣泡。為此應(yīng)在引壓管路的比較低點(diǎn)裝排水閥或在比較高點(diǎn)裝排氣閥，在新裝或檢修差壓變送器時時應(yīng)特別注意。連云港金屬轉(zhuǎn)子流量計(jì)廠家批發(fā)孔板流量計(jì)標(biāo)準(zhǔn)型節(jié)流裝置無須實(shí)流校準(zhǔn)，即可投用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="連云港孔板流量計(jì)銷售價格,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837218730468/9357415.png"></div><p> 超聲波流量計(jì)缺點(diǎn): </p> <p> （1）超聲波流量計(jì)的溫度測量范圍不高，一般只能測量溫度低于200℃的流體。 </p> <p> （2）抗干擾能力差。易受氣泡、結(jié)垢、泵及其它聲源混入的超聲雜音干擾、影響測量精度。 </p> <p> （3）直管段要求嚴(yán)格，為前**,后5D。否則離散性差，測量精度低。 </p> <p> （4）安裝的不確定性，會給流量測量帶來較大誤差。 </p> <p> （5）測量管道因結(jié)垢，會嚴(yán)重影響測量準(zhǔn)確度，帶來明顯的測量誤差，甚至在嚴(yán)重時儀表無流量顯示 </p> <p> （6）可靠性、精度等級不高（一般為1.5～2.5級左右），重復(fù)性差。 </p> <p> （7）使用壽命短（一般精度只能保證一年）。 </p> <p> <br /> </p><p> 智能型電磁流量計(jì)如果在日常使用過程中出現(xiàn)了一些問題，我們就要去認(rèn)真的去找原因。原因很多，主要有下面幾個方面： </p> <p> 一、使用場所的原因 </p> <p> 使用場所如果不太好，比如現(xiàn)場有一些干擾，我們就要想辦法來解決這些問題。比如在接地上用單一地接地，或用傳感器和管道進(jìn)行不導(dǎo)電的辦法；還有就是用屏蔽線給予保護(hù)。 </p> <p> 二、裝配程序的原因 </p> <p> 比如有的用戶把智能電磁流量計(jì)在容易有空氣的高處，或者安裝在不經(jīng)常是滿管的地方，或者安裝在流體從上到下的堅(jiān)著的管子上，這些都會使智能電磁流量計(jì)使用出現(xiàn)問題。 </p> <p> 三、測量介質(zhì)的原因 </p> <p> 如果所測量的介質(zhì)不是單單地導(dǎo)電液體，而是液氣混合，也就是說測量介質(zhì)里面有許多氣泡，它就會地影響測量信號輸出地穩(wěn)定性。 </p> <p> <br /> </p> <p> 四、長期使用了的智能電磁流量計(jì)的內(nèi)管里會積污垢，這樣也會影響電磁流量計(jì)的測量效果。 </p> <p> 五、電磁流量計(jì)的電源線，要做好防雷電的工作。特別是夏天，一定做注意這一點(diǎn)。電磁流量計(jì)所測得體積流量實(shí)際上不受流體密度、粘度、溫度、壓力和電導(dǎo)率變化的明顯影響；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="連云港孔板流量計(jì)銷售價格,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837199179687/3462499.png"></div><p> 差壓式流量計(jì)應(yīng)用范圍特別,在封閉管道的流量測量中各種對象都有應(yīng)用,如流體方面:單相、混相、潔凈、臟污、粘性流等;工作狀態(tài)方面:常壓、高壓、真空、常溫、高溫、低溫等;管徑方面:從幾 mm 到幾 m;流動條件方面:亞音速、音速、脈動流等。它在各工業(yè)部門的用量約占流量計(jì)全部用量的 1/4~1/3。 </p> <p> 孔板以內(nèi)孔銳角線來保證精度，因此對腐蝕、磨損、結(jié)垢、臟污敏感，長期使用精度難以保證，需每年拆下強(qiáng)檢一次。采用法蘭連接，易產(chǎn)生跑、冒、滴、漏問題，增加了維護(hù)工作量。 </p> <p> 工業(yè)發(fā)達(dá)國家近年 PD流量計(jì)(不包括家用煤氣表和家用水表)的銷售金額占流量儀表的 13%~23%;我國約占 20%,1990 年產(chǎn)量(不包括家用煤氣表)估計(jì)為 34 萬臺,其中橢圓齒輪式和腰輪式分別約占 70%和 20%。電磁流量計(jì)是根據(jù)法拉弟電磁感應(yīng)定律制成的一種測量導(dǎo)電性液體的儀表。連云港金屬轉(zhuǎn)子流量計(jì)廠家批發(fā)</p><p style="text-indent:25px">孔板流量計(jì)安裝時應(yīng)配有一段測量管,至少保持**DN、后5DN的等徑直管段，以提高測量精度。連云港孔板流量計(jì)銷售價格</p><p> 按流量計(jì)的結(jié)構(gòu)原理進(jìn)行分類。有容積式流量計(jì)、差壓式流量計(jì)、浮子流量計(jì)、渦輪流量計(jì)、電磁流量計(jì)、流體振蕩流量計(jì)中的渦街流量計(jì)、質(zhì)量流量計(jì)和插入式流量計(jì)。 </p> <p> 按測量對象劃分就有封閉管道和明渠兩大類;按測量目的又可分為總量測量和流量測量,其儀表分別稱作總量表和流量計(jì)?？偭勘頊y量一段時間內(nèi)流過管道的流量,是以短暫時間內(nèi)流過的總量除以該時間的商來表示,實(shí)際上流量計(jì)通常亦備有累積流量裝置,做總量表使用,而總量表亦備有流量發(fā)訊裝置。因此, 以嚴(yán)格意義來分流量計(jì)和總量表已無實(shí)際意義。連云港孔板流量計(jì)銷售價格</p><p style="text-indent:25px">江蘇中徽測控儀表有限公司位于江蘇省淮安市金湖縣工業(yè)集中區(qū)A區(qū)3號。江蘇中徽測控儀表致力于為客戶提供良好的雷達(dá)料位計(jì)，雷達(dá)液位計(jì)，物位計(jì)，水位計(jì)，一切以用戶需求為中心，深受廣大客戶的歡迎。公司將不斷增強(qiáng)企業(yè)重點(diǎn)競爭力，努力學(xué)習(xí)行業(yè)知識，遵守行業(yè)規(guī)范，植根于儀器儀表行業(yè)的發(fā)展。江蘇中徽測控儀表憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽(yù)和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1117085.html</p></div></div></div></div></div><div id="yipryac" class="page-right twoColRt"><div id="z38n8oq" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="jia3gkm" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" 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